Figure 2.

(A) Overall structure of the RecBCD complexed with the longer DNA substrate. The DNA substrate used in the previous structure (Singleton et al, 2004) is depicted in blue with the additional bases in the present structure shown in magenta. (B) Close up view of the DNA-binding site for the 3′-tail as it crosses the RecB subunit. The protein and DNA are coloured using the same scheme as in (A). (C) Close up view of the DNA-binding site for the 5′-tail as it crosses RecC (residues coloured in cyan) and onto the RecD subunit (green residues). The protein and DNA are coloured using the same scheme as in (A).